/* Blog — builds on css/vortice.css, which owns the tokens and the grid.
   Plain CSS on purpose: vortice.css is compiled from vortice.scss by hand,
   outside the pipeline, so a separate file avoids having to recompile it. */

/* Marks the current section in the site nav, which vortice.css does not style.
   Colour only: nav links are already pill-shaped, so an underline bends. */
header nav a.ativo-link {
    color: var(--cor-fonte-invert);
    font-weight: 600;
}

/* ---------------------------------------------------------------- index */

/* The site's .container pads 5x the base margin, which opens a gap between the
   filter row and the grid it belongs to. The following .container zeroes its
   own padding-top, so the breathing room below has to come from here. */
.filtros {
    padding-bottom: calc(var(--margem) * 1.5);
    padding-top: calc(var(--margem) * 2);
}

.filtro {
    background: transparent;
    border: 0;
    border-radius: 24px;
    box-shadow: 0 0 0 1px var(--cor-separador-claro) inset;
    color: var(--cor-fonte-fraca);
    cursor: pointer;
    font: inherit;
    font-size: .875em;
    margin: 0 4px;
    padding: 6px 18px;
    transition: color .15s, box-shadow .15s, background .15s;
}

.filtro:hover {
    color: var(--cor-fonte-forte);
}

.filtro.ativo {
    background: var(--cor-primaria-fraca);
    box-shadow: 0 0 0 1px var(--cor-primaria-fraca) inset;
    color: var(--cor-fonte-forte);
}

.post-grid {
    align-items: stretch;
    padding-top: 0;
}

.post-card {
    color: inherit;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding: 0;
    text-decoration: none;
    transition: transform .15s ease-in-out, box-shadow .15s ease-in-out;
}

.post-card:hover {
    box-shadow: 1px 1px 32px var(--cor-cinza), 0 0 0 1px var(--cor-primaria-fraca) inset;
    transform: translateY(-3px);
}

.post-card-img {
    aspect-ratio: 16 / 9;
    background: var(--cor-separador);
    overflow: hidden;
}

.post-card-img img {
    display: block;
    height: 100%;
    object-fit: cover;
    width: 100%;
}

.post-card-noimg {
    background: url(../img/cerebro-branco.svg) center center/44% auto no-repeat,
                linear-gradient(transparent 30%, var(--cor-primaria-separador) 100%);
    height: 100%;
}

.post-card-body {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    padding: var(--margem);
}

.post-card-body h3 {
    font-size: 1.0625em;
    line-height: 1.4;
    margin: 6px 0 8px;
}

.post-card-body p {
    color: var(--cor-fonte-fraca);
    margin-top: auto;
}

.pill {
    background: var(--cor-primaria-fraca);
    border-radius: 3px;
    color: var(--cor-fonte-forte);
    font-size: .75em;
    letter-spacing: .04em;
    margin-left: 6px;
    padding: 1px 6px;
    text-transform: uppercase;
    vertical-align: 1px;
}

/* ----------------------------------------------------------------- post */

.voltar {
    color: var(--cor-fonte-fraca);
    display: inline-block;
    margin-bottom: var(--margem);
    text-decoration: none;
}

.voltar:hover {
    color: var(--cor-primaria);
}

.post-meta {
    margin-bottom: calc(var(--margem) * 1.5);
}

.post-hero {
    border-radius: calc(var(--margem) / 2);
    margin-bottom: calc(var(--margem) * 1.5);
    overflow: hidden;
}

/* Featured images range from wide renders to portrait phone photos; cap the
   height so a tall one does not push the article below the fold. */
.post-hero img {
    display: block;
    max-height: 420px;
    object-fit: cover;
    width: 100%;
}

.post-body {
    font-size: 1.0625em;
}

.post-body p {
    margin-bottom: var(--margem);
}

.post-body h2,
.post-body h3,
.post-body h4 {
    margin: calc(var(--margem) * 1.5) 0 calc(var(--margem) / 2);
}

.post-body ul,
.post-body ol {
    margin: 0 0 var(--margem);
    padding-left: calc(var(--margem) * 1.2);
}

.post-body li {
    margin-bottom: 6px;
}

.post-body a {
    color: var(--cor-primaria);
}

.post-body img {
    border-radius: calc(var(--margem) / 2);
    height: auto;
    max-width: 100%;
}

.post-body blockquote {
    border-left: 2px solid var(--cor-primaria-fraca);
    color: var(--cor-fonte-fraca);
    margin: var(--margem) 0;
    padding-left: var(--margem);
}

.post-body hr {
    border: 0;
    box-shadow: 0 1px var(--cor-separador-claro);
    margin: calc(var(--margem) * 2) 0;
}

/* ------------------------------------------------------------ prev/next */

.post-nav {
    display: grid;
    gap: var(--margem);
    grid-template-columns: repeat(2, 1fr);
    margin-top: calc(var(--margem) * 2);
    padding-top: var(--margem);
    box-shadow: 0 1px var(--cor-separador-claro) inset;
}

.post-nav-item {
    color: var(--cor-fonte);
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding-top: var(--margem);
    text-decoration: none;
}

.post-nav-item:hover {
    color: var(--cor-primaria);
}

.post-nav-item.alinha-direita {
    grid-column: 2;
    text-align: right;
}

@media screen and (max-width: 999px) {
    .post-nav {
        grid-template-columns: 1fr;
    }

    .post-nav-item.alinha-direita {
        grid-column: 1;
        text-align: left;
    }
}